June 7, 1918.

THE COLLIERY GUARDIAN.

[supplement PAGE IX.]

1169

THE ---

Koppers’ Coke Oven

Is undoubtedly the most successful Bye-Product Oven on the market.

Since its introduction a little over 10 years ago there have been built

15,000 KOPPERS’ OYENS.

KOPPERS’ OVENS ARE AT WORK HEATED BY
PRODUCER GAS AND BLAST FURNACE GAS.

KOPPERS' DIRECT RECOVERY PROCESS
IS THE SIMPLEST ANO MOST EFFICIENT
SYSTEM OF AMMONIA RECOVERY.

PLANTS ERECTED FOR THE RECOVERY OF
BENZOL & TOLUOL, FOR TAR DISTILLATION &
THE MANUFACTURE OF SULPHURIC ACID.

————----- Full particulars on application to —	-

Tfoe Koppers’ Coke Oven and Bye-Product Co.

301, GLOSSOP ROAD, SHEFFIELD. 4S’".,SbTf^-

eamOUS BRANDS

■ 1



HIGH SPEED STEEL.

■<	^ ... . .	.</ r.	w	'A	1.?^,.^



F

A. W.

HIGH SPEED”

“A. W.

PREMIER”

FOR TURNING,

DRILLING

PLANING AN D TRADE

MILLING AT
HIGH SPEEDS.

FOR CUTTING

ALL METALS

AT HIGHEST SPEEDS

& LONG ENDURANCE.

ALL CLASSES OF

CARBON TOOL STEELS,

TWIST DRILLS,

MILLING CUTTERS,

BROACHES AND

HOBS.

ALL CLASSES OF

HAND SCREWING

. APPARATUS,

(Stocks, Dies Taps; C hashers,etc)
GAUGES.

MEASURING MACHINES.

SIRWG. ARMSTKONG.WHITWORTH&Co.Lm

T OPENSHAW - MANCHESTER



TELEPHONE:-6480, CENTRAL(S1X LINES)

HI......

___

TELEGRAMS:- WHITWORTH. OPENSHAW.